chat: set max lines before history is added

modules/chat.lua

@@ -359,10 +359,6 @@ pfUI:RegisterModule("chat", "vanilla:tbc", function ()
         frame:SetFading(false)
       end
 
-      if C.chat.global.maxlines ~= "128" then
-        frame:SetMaxLines(tonumber(C.chat.global.maxlines) or 128)
-      end
-
       if i == 3 and C.chat.right.enable == "1" then
         -- Loot & Spam
         local bottompadding = pfUI.panel and pfUI.panel.right:IsShown() and not pfUI_config.position["pfPanelRight"] and panelheight or default_border
@@ -818,6 +814,10 @@ pfUI:RegisterModule("chat", "vanilla:tbc", function ()
   end
 
   for i=1,NUM_CHAT_WINDOWS do
+    if C.chat.global.maxlines ~= "128" then
+      _G["ChatFrame"..i]:SetMaxLines(tonumber(C.chat.global.maxlines) or 128)
+    end
+
     if not _G["ChatFrame"..i].HookAddMessage then
       if C.chat.text.history == "1" then
         -- write history to chat